Alphabetically Sort A Generic List (Of String) In .NET?
Dec 1, 2009I've created and populated a generic list of strings like this:
Dim MyList As New List(Of String)
MyList.Add("Beta")
MyList.Add("Echo")
[code]....
Now I want to order it.
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Alphabetically Sort Letters Shown In List?
Jan 20, 2010I am working on the old hangman game. I am up to a part were I have to use a sort button to alphabetically sort the letters already guessed that are showing in the list.
I have found this code:
Array.Sort(strLettersGuessed)
lblGuessed.Text = ""
For i = 0 To strLettersGuessed.Length - 1
lblGuessed.Text = lblGuessed.Text + strLettersGuessed(i) + ", "
[Code] .....
The problem I am having is where the flow chart asks us "is the letter at counter < the letter at counter -1? In my above code I am trying to answer this with this line:
If intCounter < strLettersGuessed.Length - 1 Then
I have tried about 50 different things in place of intCounter as well as strLettersGuessed.Length -1 and nothing seems to work. Sometimes I get an error stating can't be infinite, etc or I get no error at all but the sort button doesn't work.
.net - Sort Generic List Based Upon A Different List?
Oct 29, 2010What would be the fastest way to sort a list that contains a list of objects, based upon another list? An example follows:Say I have multiple lists of employees. Each individual list has a common property value, say "Department". So I have a list of employees, in one list they all have the department string value of "Sales". In another list all the objects have a department value of "Finance". These lists of employees are then contained in a list which holds them all.
I have a second list, which should drives the sort order of the employee lists. The second list simply contains a list of strings like, "Finance", "Sales", "IT" and so on. I'd like my lists of customers to be sorted in the order of "Finance", "Sales", etc.I'm using VB.NET in .NET 2.0
.net - Sort Generic List On Two Or More Values?
May 15, 2009We have a generic List(Of Product) that must be sorted on two or more properties of the Product class.
The product class has the properties "Popular" numeric (asc), "Clicked" numeric (desc), "Name" string (asc). In order of naming the properties we want the list to sort.
How can it be sort with an lamba statement? If have found to sort the list based on one property.
Sort ListView By Image.Index If Index Over 4 Sort Rest Alphabetically
Apr 12, 2012Currently my ListView sorts items by image.index. So 0 is at the top, then 1, 2 and so on. Think of it as an IRC chat room nick list. Ops at top then the rest are sorted alphabetically
[Code]....
Asp.net - Sort DataAdapter Alphabetically ?
Nov 30, 2010This should be a fairly simple one. I am creating a dataset which will contain a description field which I would like to sort by. The reason I want to sort the dataadapter and not in my SQL is that I am already ordering by the results that have a particular value.My SQL looks like this:
SELECT pif_desc, pif_fund, psf_end, (CASE WHEN SUM(pmi_units) IS Null THEN 0 ELSE SUM(pmi_units) END) As fundunits
FROM tbl_mem INNER JOIN tbl_sfunds[code]....
I want to sort the datarows is ds.tables(0) by pif_desc but still have the rows with fundunits > 0 listed first. how I can achieve the correct ordering.
TreeViewNodeSorter Sort Alphabetically
Oct 4, 2011I have been attempting to work the TreeViewNodeSorter into a treeview. I essentially need the first level of the tree to be sorted by two things: 1) In the tag of each node there is a zero (0) or a one (1) - I need the zero, then the one to be the first sort order. Then I need it to sort alphabetically after that. How can I do this?
View 10 RepliesVS 2008 Sort Datatable Column(0) Alphabetically
Dec 10, 2010I want to sort my datatable column(0) alphabetically, but cant seem to find a way to do it. Just to give you an idea:
[Code]...
[2008] Sort Listbox Items Alphabetically
Feb 24, 2009How can i sort my Items in a Listbox by Letter.
View 1 RepliesSorting - Sort List(of String()) Using A Variable Index Into String() As Key ?
May 30, 2012I have a List(of String()). I have written a custom comparer (implements IComparer(of string)) to do an alphanumeric sort.Is there a way to sort the List using a given index to determine which position in the String() to sort by? In other words one time I might sort by Index = 0 and another time by Index = 3. The length of all String() in the list is the same.For reference this question is similar to Sort List<String[]> except I am using VB.net and that question is hardwired to Index=0.
EDIT from OP's comments:I started simple with the non custom comparer but I am getting an error: expression does not produce a value. Not sure what I am doing wrong.Here is the code:
Public Shared Function SortListOfStringArray(ByVal ListOfStringArray As List(Of String()), ByVal SortByIndex As Integer) As List(Of String())
Return ListOfStringArray.Sort(Function(x, y) x(SortByIndex).CompareTo(y(SortByIndex)))
End Function
.net - Iterating Through Generic List Of String?
Jan 28, 2012I have the follow code in my program where I hit a SQLCe database to append the results into a list. That part works, but instead of exiting the function 'QueryDB' it goes to the else statement and runs the function again, which will return a null value. I designed it this way becuase I wanted to check to make sure the database is open before I try to execute the SQL statement, and if it's not open, call the method to open it and run through the function again.
[Code]...
Converting A Generic List To String Array?
Mar 8, 2011I have a generic List(Of Customer). The customer class has a name, address, and phone number properties. I also have a property of another class that accepts a customer name array. I am able to do this by doing the following:
Dim names As String()
Dim i As Integer = 0
'customer.GetCustomers is a List(of Customer)
[Code]....
Is there a better way to convert this to a string array?
Sort A List (Of String) Alphanumerically?
Apr 26, 2012I have looked, unsuccessfully, for how to sort a list of strings alpha numerically. The .Sort() method sorts it like so:
abc,abc1,abc11,abc12,abc2,abc21,abc22
I don't want it sorted that way, I want it sorted like so:
abc,abc1,abc2,abc11,abc12,abc21,abc22
.net - De-serializing A Space Delimited String Into A Generic List?
Oct 19, 2011I have an xml file with elements that look like this (abbreviated for clarity):
<post id="1" tags="tag1 tag2 tag3 tag4" />
I want to map this to the following class using Xml Deserialization, but I can't find a way to map the tags attribute to an actual List(Of String).
<Serializable()> _
<XmlRootAttribute("post")> _
Public Class Post
[Code]....
Is there any way to override the default Deserialization?
Working With Generic List Of String Array Objects
Apr 7, 2010I'm writing a program that reads a directory of xml files (not well-formed), parses the xml, and dumps the data into an Excel Workbook.The file contents are similar in that they have many common xml nodes/attributes.Some files have additional nodes/attributes.The xml in these files represent configuration settings for a Web Application, one file per user.The expected output is a worksheet with a column for each node/attribute combination and a row of node/attribute values for each user.I'm just about finished with the program, but I've run into a bit of a snag.As the final step in the process, I need to loop through a generic list of array objects (that represent a user row) and send the array elements to Excel.I don't know the correct syntax to get the array objects out of the list and have been unable to find sample code specific to generic lists of array objects.[code]
View 3 RepliesC# - Sorting List Alphabetically And By Type?
Apr 18, 2011I have a list of instruments and I need to sort them to the following requirement.
order by:
cash
securities in alphabetical order
managed funds in alphabetical order
I have a list of instrument which has properties name and type, I've managed to sort alphabetically by name.
Instruments.Sort(Function(x, y) String.Compare(x.Name, y.Name))
Instruments.Sort((x, y) => string.Compare(x.Name, y.Name));
How To Get Generated List Of Links Sorted Out Alphabetically
Aug 16, 2010How can I get the resulting generated list of links sorted out alphabetically according to "sTitle"? My sort function on line 272 is not giving me the results I need.
<script language="VB" runat="server">
Function sectionTitle(ByRef f As String)
'Open a file for reading
'Dim FILENAME As String = Server.MapPath("index.asp")
Dim FILENAME As String = f
'Get a StreamReader class that can be used to read the file
[Code] .....
.net - Creating A Generic List Of A Generic Type
Jun 30, 2011I am trying to create a list of a generic type in vb.net 2.0 framework.
This is the generic type definition:
Public Class GenericParamMap(Of T)
Public Sub New(ByVal pParamName As String, ByVal pPropValue As T)
mParamName = pParamName
[Code]....
The compiler does not allow a "T" in the method's parameter because it's not defined, but I'm not sure how or where to define it. I thought it was okay to have a generic method definition.
.net - Use List.Sort And Comparision(of T) To Sort Descending/Ascending?
Jul 5, 2011I have a MyObject; myObjects as List(Of MyObject) and a delegate Comparison(Of MyObject) that uses a lot of comparison functions (ByA, ByB, ByC etc) Ã la:
Shared Function CompareMyObjectsByName(x As MyObject, y As MyObject) As Integer
Return x.Name.CompareTo(y.Name)
End Function
[Code].....
List(Of T).Sort - Sort The List By Year
Jul 10, 2011I have a List(Of T) storing a list of Custom classes called Advertisement. Each advertisement contains 3 properties, Year, Make and Model. I need to sort the list By Year, then by Make and then by Model. I have a property in the Advertisement class called Vehicle which returns a formatted string with the Year Make Model like 2007 Toyota Tacoma and ive been sorting on that but its not working how I thought it would. Basically I want to sort the list by Year (decending; lowest year first) then sort by the Make and Model (in alphabetical order) Is that even possible? Here is the code ive been using.
[Code]...
Determine If Property Is Generic List<of T> Via Reflection And Loop List Items
Oct 1, 2009I'm looping all the properties in an object via reflection:
For Each p As PropertyInfo In values.[GetType]().GetProperties()
If p.CanRead Then
'Do stuff
End If
Next
how to determine whether the property in question is a generic List(Of T)? If it is I need to loop the list itself.
I've experimented with GetType and TypeOf but have not managed to get anything working.
To clarify, I want to keep this generic. I do not want to specify the type of T, I need to loop the list items and call the ToString method on each item. T could be one of a number of different types (application specific reference types). Is it possible to do this without specifying types?
(VB.NET 2005 with .Net 2.0)
Get Type Of Derived Generic List Class From List Item Method?
Mar 23, 2011Public Class notifierMain
Public Class Contacts
Inherits List(Of row)
Public Sub New()
[code]....
When I debug this winforms application I get curType = "notifier.notifierMain+Contacts+row" I want to the Validate function to know it is in MyContacts. How do I do this?
.net - Returning A List Using Entity Framework, 'System.Collections.Generic.List Cannot Be Converted To '1-dimensional Array
May 3, 2012i have issue returning a list in a web method. here is the code
<WebMethod()> _
Public Function getTags(para_parents As String) As List(Of getTypeDetailsByParentName_Result)()
Dim context As New PPEntities
[code]....
the error is
Value of type 'System.Collections.Generic.List(Of SaftyonRoad.getTypeDetailsByParentName_Result)' cannot be converted to '1-dimensional array of System.Collections.Generic.List(Of SaftyonRoad.getTypeDetailsByParentName_Result)'
Pass Generic List To A Function That Has A Custom Defined List
Apr 7, 2011it seems always at this time I cant figure out how to do something maybe it has something to do with lunchtime.
Im having trouble using a method that is defined by an outside company
This is a link to their integration guide:
[URL]
This is their documentation for the class Im trying to use
OrderQueryWebService Class
This class is for SID in particular and is made for use with the notification methods. This is for the Order Query Web Service specifically, allowing clients to return the status of transactions for their merchant, whenever they want to.
Methods
/ <summary>
/ Pass through the variables required and receive a list of Transaction
objects showing transaction status
[Code].....
The MerchantCode, the MerchantUsername, the MerchantPassword are all good the List is a custom type called SetComHash.Transaction
Everytime I try adding a string to the list such as the transactionNumber and some other values it gives me a type error:
"Value of type string cannot be converted to 'SetcomHash.Transaction'
VS 2005 Sort List Of Objects By Child List Order?
Jul 20, 2011I'm having a bit of a 'brain doner' moment here
I have a list of Objects. Each of these Objects contains a list of other Objects (pseudo code) :-
Private Structure Object1
dim Name as string
dim ListOfObject2 as List(Of Object2)
[Code]....
I need to sort the list of Object1 by the Value in Object2. I have a comparison class which sorts Object2 by its Value nicely.
.net - Function To Accept List(Of String), Array & String And Similarly Return List(Of String)?
Jul 29, 2011I want the Function to accept List(Of String), Array & String and similarly return List(Of String), Array & String respectively. The Function simply adds a string (month) to the input collection. I just want to use it for string, array and list with needing to think of conversions.
[Code]...
Generic TypeOf Operator - See If List Is A List(Of T) Variable - Error: "Type Expected"?
Jan 5, 2011Dim x = GetType(List(Of )) 'valid statement
Dim list As New List(Of String)
Now I want to see if list is a List(Of T) variable: Dim isList = TypeOf list Is List(Of ) On the last line I get a compile error: "Type Expected". Is there any cheap-performance TypeOf operator alternative for generics?
Array.Sort(array) - Specify A Numeral Sort Based On The First Character In The String?
Jan 29, 2009Sub Sort()
ReDim RollsCC(NumOfPlayers - 1)
For N As Integer = 0 To (NumOfPlayers - 1)[code]....
Here I am creating a temp single dimensional array, merging my 2d array into it, and then attempting to sort it by Rolls(N,1), which is a integer 1-6, Everything seems to be working right with the exception of this.
RollsCC.Sort(RollsCC, 0, 1)
How would one specify a numeral sort based on the first character in the string? im aware that I am switching Rolls(n,1) and Rolls(n,0) information during the sort.
Error - Red "List" Says Too Few Type Arguments To System.Collections.Generic.List(Of T)'
Mar 12, 2009I have converted c# .cs to vb:= I have 6 errors on:
Red "List" says Too few type arguments to system.Collections.Generic.List(Of T)'
Orange "Calendar" says Value of type 'System.Windows.Forms.Control.ControlCollection' cannot be converted to 'Form1.Kobush.Windows.Forms.Appointment'.
[code]....
Asp.net - Find The Max Id From A Generic List?
Oct 13, 2011i m getting a collection of data in list's object. And from this list i want to get the maximum id.`
Dim objinfo As List(Of AlbumInfo) = objPhotos.GetPhotos_Alb_ID(Me.ModuleId, hdd_AlbID.Value)
Dim Photo_Image As String = ""
Dim str As String = Photo_Image & fu_Photo.PostedFile.FileName.Substrng(fu_Photo.PostedFile.FileName.LastIndexOf("."))
[code]....
this returns the "0"th positions id from Convert.ToString(objinfo.Item("0").Photo_Id + 1)but i want to get the last item's id.